Gymnocalycium ochoterenae is a species of Gymnocalycium from Argentina.[1]
Gymnocalycium ochoterenae grows individually with olive green to brownish, flattened spherical to hemispherical shoots and reaches heights of 3 to 4.5 centimeters with diameters of up to 8 centimeters. A stubby, branched taproot is formed. The nine to 16 wide and flat ribs are rarely slightly humped. There is a central spine, which is often missing. The three to five (rarely 1 to 7) brownish-yellow to whitish-yellow marginal thorns that are curved back towards the plant body or radiate in a comb-like manner have a darker tip and are 1 to 1.5 centimeters (rarely up to 2.2 centimeters) long.
The funnel-shaped, white flowers have a light pink throat. They reach a length of 3.5 to 5.5 centimeters (rarely up to 6.5 centimeters) and have a diameter of 3.5 to 5.5 centimeters. The green to dull red fruits are barrel-shaped and 1.5 to 2 centimeters long.[2]
Gymnocalycium ochoterenae is widespread in the Argentine provinces of Córdoba and San Luis at altitudes of 500 to 1500 meters.
The first description was made in 1936 by Curt Backeberg.[3] The specific epithet ochoterenae honors the Mexican botanist Isaac Ochoterena (1885–1950).